- 2015 - 現在 Multiculturalism in Germany (from a viewpoint of migrants and refugees)
- 2001 - 現在 ドイツ語圏における女性旅行記文学-その系譜と受容-
- 1996 - 現在 history and literature of German minorities in Romania, Particularly from Bukovina
- 2022 - 2025 ディアスポラとしてのルーマニア・ドイツ語話者と文学ー世界への拡散・孤立化・連帯-
- 2021 - 2025 Challenges and Prospects for Immigration and Refugee Integration in the EU: Focusing on the Former Socialist Area
- 2021 - 2024 The Sharing of "National Poets" and the Diaspora: The Function of The Media's Formation of "Ethnicity" and Literature
- 2019 - 2023 多言語性の否定と肯定-ルーマニア・ドイツ語文学に見る言語アイデンティティの諸相-
- 2017 - 2021 EUにおける難民の社会統合モデル-ドイツ・ハレ市の先進的試みの可能性と課題-
- 2016 - 2019 Disruption of Diaspora Identity and Resistance of Memory -Replication and Repair of Literacy Function-
- 2016 - 2019 Identity Formation of German-speaking Groups in Romania and their Acceptance of the Literature of the German Classicism
- 2013 - 2016 German-language literature in Romania and its confrontation with two kinds of "the path"; National Socialism and the socialist dictatorship
- 2012 - 2015 The rewriting of the genealogies in the new generation diasporas-The centripetal force and double bind of the literary works of complaint
- 2010 - 2012 "Expatriate German-Studies": Its Institutionalization and Taboo.-"German Studies" Reconsidered from the Viewpoints of Minority Studies-
- 2009 - 2011 Rediscovery and accumulation of literary works in the diasporas . Their archives of Minority-Recollections
- 2007 - 2009 "Marginalized" Literature in German -Jewish Poets from Bukovina : Their Multiple Marginalization and Poetic Expressions-
- 2007 - 2008 Change in the diaspora-literature caused by globalization-Reorganization of the diaspora-identities
- 2005 - 2006 ドイツ語圏における女性旅行記とその受容-大衆観光文化形成における女性文学の役割-
- 2005 - 2006 Construction of Diaspora-identities and Literature, or Cultural Nationalism Formed by Literature
- 2002 - 2003 Representation of the Intricate Consciousness of Minority Groups as Manifested in Contemporary Literature, with particular reference to gender, class and language
- 2001 - 2002 LANGUAGE WARS IN MULTICULTURAL SOCIETIES
- 2000 - 2001 Language beyond Ethnicity and Modern Literature: Representation and Language Choice in Multi-cultural Society
- 1998 - 1999 REGION CONSCIOUSNESS AND LITERATURE IN THE REORGANIZED EUROPE
- 1997 - 1999 Features of Cultural Differences in the Eastern Asia
- 1997 - 1998 マイノリティ文学としてのルーマニア・ドイツ語文学の歴史と現在
- 1997 - 1998 Language Identity and Modern Literature of Minority Groups in Multicultural Societies
- 1982 - German-language literature from fin de siècle to the 1920s, particularly Hugo von Hofmannsthal
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